Cylinder for gas-engines.



PATENTED APR 14, 1908.

P. EGHWEHM; CYLINDER FOR GAS ENGINES.

APPLIGATIOIT FILED FEB. 23. 1907.

PETER SCHWEHM, OF HANOVER, GERMANY.

CYLINDER FOR GAS-ENGINES.

Specification 0! Letters Patent.

Patented April 14, 1908. I

Original application filed March 1,1906, Serial No. 303,581. Divided and this application filed February 23, 1907.

1. Serial No. 358,786.

' inder which is so constructed that the waste gases are ex elled with the lowest ossiblepressure of t e scaven 'ng air, while urther-,

more, the cylinder wi not be weakened by the*openings that serve for the escape of the under deadgases.

This application is a division of a co-pending ap h'cation filed by me March 1, 1906,

rial No. 303,581.

In the accompanying drawing: Figure 1 is a lon 'tudinal section of my improved cylinder; Fig. 1, and Fi' 3 a longitudinal section'of part of a cylin er, illustrating a modificatlon of the invention.

The cylinder 5 of the gas engine is provided with an inlet 6 for the explosive "charge, and,

with an annulus having a series of exhaust These ports open into an annular exhaust chamber that surrounds the cylinder and gradually increases in width towards the exit opening '9. The exhaust ports 7 are of different curvature, the latter being so selected that the dead gases passing through the various parts are prevented from being directed against the outer wall of the exhaust chamber, but are forced to pass along.

the middle of such chamber. In this way any whirls or shocks of the expelled gases are prevented and a steady; uninterrupted flow of such gases towards opening 9 is insured.

The walls or partitions 10 between the perig. 2 a cross section on line2-2,

forations 7 are of a height greater than the thickness of the cylinder-wall, so that the perforated section of cylinder 5 is adapted to sustain the same tension as the imperforate.

part thereof. In other words, the partitions 10 are constructed of sufficient strength to transmit the force of the explosion from the rear end of the cylinder to the shaft of the engine without the assistance of jacket 11 that surrounds the cylinder. In this Way,

jacket 11 may be cast separate from cylinder 5, so that jacket and cylinder may independently ex and or contract axially owin to their di erence in temperature. Cylin er 5 is provided with end flanges 5 which are engaged by the-ends of jacket 11, a watertight packi and jac et.

In order to cool the walls 10, an annular channel 12 may be provided, (Fig. 3). This channel receives the cooling water throu h a lower opening 13 and discharges it at 14 into jacket 11'. In this way the partitiohs 10 will be thoroughly cooled andjuneven expansion of the cylinder will be prevented.

I claim:"

' A gas engine cylinder provided with an an- PETER SOHWEHM.

Witnesses:

PAUL R. THOMPSO JAMEs M. BoUoooK.

15, being interposed between flan'ges' 

